import 'package:flutter/material.dart';
import 'package:flutter_webview_plugin/flutter_webview_plugin.dart';
import 'package:flutterapp/model/Result.dart';
import 'package:flutterapp/test.dart';
import 'home.dart';
import 'index.dart';
import 'api.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      routes: {
        "/web": (_) => new WebviewScaffold(
              url: "https://www.baidu.com",
//              appBar: new AppBar(
//                title: new Text("Widget webview"),
//              ),
            ),
        "/second":(_) => SecondScreen(),
        "/home":(_) => HomeScreen(),
        "/index":(_) => IndexScreen(),
      },
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class SecondScreen extends StatelessWidget{
  @override
  Widget build(BuildContext context){
    return Scaffold(
        appBar:AppBar(title:Text('技术胖商品详情页')),
        body:Center(child:RaisedButton(
            child:RaisedButton(
              child:Text('返回'),
              onPressed: (){
                Navigator.pop(context);
              },
            )
        ))
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);

  // This widget is the home page of your application. It is stateful, meaning
  // that it has a State object (defined below) that contains fields that affect
  // how it looks.

  // This class is the configuration for the state. It holds the values (in this
  // case the title) provided by the parent (in this case the App widget) and
  // used by the build method of the State. Fields in a Widget subclass are
  // always marked "final".

  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int _counter = 0;
  int _selectedIndex = 0;
  PageController pageController;

  void _incrementCounter() {
    setState(() {
      // This call to setState tells the Flutter framework that something has
      // changed in this State, which causes it to rerun the build method below
      // so that the display can reflect the updated values. If we changed
      // _counter without calling setState(), then the build method would not be
      // called again, and so nothing would appear to happen.
      _counter++;
    });
  }

  @override
  void initState() {
    pageController = new PageController(keepPage: true);
    super.initState();
  }

  @override
  void dispose() {
    pageController?.dispose();
    super.dispose();
  }

  void _sendMeg() {
    print("点击触发");
    Navigator.pushNamed(context, "/second");
  }


  void _navigatorTo(int page) {
//    pageController.animateToPage(page,
//        duration: const Duration(milliseconds: 300), curve: Curves.ease);
      pageController.jumpToPage(page);
//    if(index == 0)Navigator.pushNamed(context, "/");
//    else if(index == 1)Navigator.pushNamed(context, "/index");
  }

  void  fetchNetData(int index) async {
    Result result = await apiGetProductTypeList();
    print('Howdy, ${result.data}!');
  }

  @override
  Widget build(BuildContext context) {
    // This method is rerun every time setState is called, for instance as done
    // by the _incrementCounter method above.
    //
    // The Flutter framework has been optimized to make rerunning build methods
    // fast, so that you can just rebuild anything that needs updating rather
    // than having to individually change instances of widgets.
    return Scaffold(
//      appBar: AppBar(
//        // Here we take the value from the MyHomePage object that was created by
//        // the App.build method, and use it to set our appbar title.
//        title: Text(widget.title),
//      ),
      body:PageView(
        children: <Widget>[
          HomeScreen(),
          IndexScreen(),
          TestScreen()
        ],
        pageSnapping: true,
        controller: pageController,
        onPageChanged: (int index) {
          setState(() {
            _selectedIndex = index;
          });
        },
      ),
      bottomNavigationBar: BottomNavigationBar(
          items: <BottomNavigationBarItem>[
            BottomNavigationBarItem(icon: Icon(Icons.home), title: Text('Main')),
            BottomNavigationBarItem(icon: Icon(Icons.add_shopping_cart), title: Text('Home')),
            BottomNavigationBarItem(icon: Icon(Icons.account_balance), title: Text('Test')),
          ],
          currentIndex: _selectedIndex,
          fixedColor: Colors.deepPurple,
          onTap: _navigatorTo,
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _sendMeg,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}
